Finding the Fourth Proportional to 662,252,836.37, 913,621,748.99 and 394,178,353.65
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Solution
The fourth proportional to 662,252,836.37, 913,621,748.99 and 394,178,353.65 is: 543,795,204.94
Step by Step Solution
- Step 1: Write the proportion equation
662,252,836.37 : 913,621,748.99 = 394,178,353.65 : x - Step 2: Convert to fraction form
662,252,836.37/913,621,748.99 = 394,178,353.65/x - Step 3: Cross multiply
662,252,836.37x = 913,621,748.99 × 394,178,353.65 - Step 4: Simplify right side
662,252,836.37x = 360,129,916,873,740,864 - Step 5: Solve for x
x = 360,129,916,873,740,864/662,252,836.37 - Step 6: Final answer
x = 543,795,204.94
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.